From d94d3d9fbe1e7e4bdb42ab56b05c2890f0eda725 Mon Sep 17 00:00:00 2001
From: Oskar Dudycz <oskar.dudycz@gmail.com>
Date: Fri, 17 Dec 2021 13:16:47 +0100
Subject: [PATCH] Removed redundant entity generic parameter for add command
 handling from the Simple CQRS with ESDB example.

---
 .../ECommerce.Core/Commands/CommandHandler.cs | 22 +++++++++----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/Sample/EventStoreDB/Simple/ECommerce.Core/Commands/CommandHandler.cs b/Sample/EventStoreDB/Simple/ECommerce.Core/Commands/CommandHandler.cs
index 5f2efa363..aad432c50 100644
--- a/Sample/EventStoreDB/Simple/ECommerce.Core/Commands/CommandHandler.cs
+++ b/Sample/EventStoreDB/Simple/ECommerce.Core/Commands/CommandHandler.cs
@@ -9,13 +9,13 @@ namespace ECommerce.Core.Commands;
 
 public static class CommandHandlerExtensions
 {
-    public static async Task HandleCreateCommand<TCommand, TEntity>(
+    public static async Task HandleCreateCommand<TCommand>(
         EventStoreClient eventStore,
         Func<TCommand, object> handle,
         Func<TCommand, string> getId,
         TCommand command,
         CancellationToken ct
-    ) where TEntity : notnull
+    )
     {
         var entityId = getId(command);
         var @event = handle(command);
@@ -41,25 +41,25 @@ public static async Task HandleUpdateCommand<TCommand, TEntity>(
         await eventStore.Append(id, @event, getVersion(command), ct);
     }
 
-    public static IServiceCollection AddCreateCommandHandler<TCommand, TEntity>(
+    public static IServiceCollection AddCreateCommandHandler<TCommand>(
         this IServiceCollection services,
         Func<TCommand, object> handle,
         Func<TCommand, string> getId
-    ) where TEntity : notnull =>
-        services.AddCreateCommandHandler<TCommand, TEntity>(_ => handle, getId);
+    ) =>
+        services.AddCreateCommandHandler(_ => handle, getId);
 
-    public static IServiceCollection AddCreateCommandHandler<TCommand, TEntity>(
+    public static IServiceCollection AddCreateCommandHandler<TCommand>(
         this IServiceCollection services,
         Func<IServiceProvider, Func<TCommand, object>> handle,
         Func<TCommand, string> getId
-    ) where TEntity : notnull =>
+    ) =>
         services
             .AddTransient<Func<TCommand, CancellationToken, ValueTask>>(sp =>
             {
                 var eventStore = sp.GetRequiredService<EventStoreClient>();
 
                 return async (command, ct) =>
-                    await HandleCreateCommand<TCommand, TEntity>(eventStore, handle(sp), getId, command, ct);
+                    await HandleCreateCommand(eventStore, handle(sp), getId, command, ct);
             });
 
     public static IServiceCollection AddUpdateCommandHandler<TCommand, TEntity>(
@@ -122,7 +122,7 @@ public CommandHandlersBuilder<TEntity> AddOn<TCommand>(
             Func<TCommand, string> getId
         )
         {
-            services.AddCreateCommandHandler<TCommand, TEntity>(_ => handle, getId);
+            services.AddCreateCommandHandler<TCommand>(_ => handle, getId);
             return this;
         }
 
@@ -131,7 +131,7 @@ public CommandHandlersBuilder<TEntity> AddOn<TCommand>(
             Func<TCommand, string> getId
         )
         {
-            services.AddCreateCommandHandler<TCommand, TEntity>(_ => handle, getId);
+            services.AddCreateCommandHandler<TCommand>(_ => handle, getId);
             return this;
         }
 
@@ -154,4 +154,4 @@ Func<TCommand, uint> getVersion
             return this;
         }
     }
-}
\ No newline at end of file
+}